Sihu

Sihu may refer to:


 * Sihu (instrument), Chinese bowed string instrument
 * Four hu, a way of classifying Chinese syllable finals
 * Sihu, Jiangsu (四户镇), town in Pizhou City, Jiangsu, PR China
 * Sihu, Changhua (溪湖鎮), or Xihu, town in Changhua County, Taiwan
 * Sihu, Miaoli (西湖鄉), or Xihu, township in Miaoli County, Taiwan
 * Sihu, Yunlin (四湖鄉), township in Yunlin County, Taiwan